Circle Cutter for Plasma Cutter

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I need to make me a devise to help me cut nicer circle with my plasma cutter.  Has anyone made one they would like to share with me?  I am going to me cutting 14” to 30” circles out of 3/16" steel.Thanks, Randy
Reply:I made this  rig out of some stuff I had under my work bench. Power is a small Makita cordlesss drill, variable speed. Circles come out +- 5 thou.[ame]http://www.youtube.com/watch?v=iI0qbNjLCHs[/ame] Attached Images
Reply:I'm in the process of making a couple for myself & Joker.  I've made 3 so far, but they were just prototypes & didn't work real well.  This one is designed just like the ones Hypertherm, Thermal Dynamics & other companies sell.Google "plasma Circle Cutter Guide" & it will show the designs.MarkI haven't always been a nurse........Craftsman 12"x36" LatheEnco G-30B MillHobart Handler 175Lincoln WeldandPower 225 AC/DC G-7 CV/CCAdd a Foot Pedal to a Harbor Freight Chicago Electric 165A DC TIG PapaLion's Gate Build